A true breeding black fowl is crossed with a true breeding white fowl, and all the progeny fowl are neither black nor white. Is this an example of Mendelian inheritance?

Answer 1

This is an example of incomplete dominance. In this case black colour is incompletely dominant on white colour.

Generally the hybrid is described as 'blue' coloured and it is seen in Andalusian chickens.

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Example of codominance is also there in chickens, where a cross between black and white yield checkered/speckled chickens.

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Answer 2

Gabriella Anderson

No, this is not an example of Mendelian inheritance. Mendelian inheritance typically involves the segregation and assortment of alleles for a single gene trait, resulting in predictable ratios of phenotypes in offspring. In this scenario, where the offspring are neither black nor white, it suggests that there may be additional genetic factors or incomplete dominance at play, which deviates from typical Mendelian inheritance patterns.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.